Home / 318,234,375.96-439,139,698.08-178,978,233.54

Finding the Fourth Proportional to 318,234,375.96, 439,139,698.08 and 178,978,233.54

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Solution

The fourth proportional to 318,234,375.96, 439,139,698.08 and 178,978,233.54 is: 246,976,610.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,234,375.96 : 439,139,698.08 = 178,978,233.54 : x
  2. Step 2: Convert to fraction form
    318,234,375.96/439,139,698.08 = 178,978,233.54/x
  3. Step 3: Cross multiply
    318,234,375.96x = 439,139,698.08 × 178,978,233.54
  4. Step 4: Simplify right side
    318,234,375.96x = 78,596,447,439,647,328
  5. Step 5: Solve for x
    x = 78,596,447,439,647,328/318,234,375.96
  6. Step 6: Final answer
    x = 246,976,610.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.